Generic name: etoposide
Dosage form: injection
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Note: Plastic devices made of acrylic or ABS (a polymer composed of acrylonitrile, butadiene, and styrene) have been reported to crack and leak when used withundiluted etoposide injection.
The usual dose of TOPOSAR in testicular cancer in combination with other approved chemotherapeutic agents ranges from 50 to 100 mg/m2/day on days 1 through 5 to 100 mg/m2/day on days 1, 3, and 5.
In small cell lung cancer, the TOPOSAR dose in combination with other approved chemotherapeutic drugs ranges from 35 mg/m2/day for 4 days to 50 mg/m2/day for 5 days.
For recommended dosing adjustments in patients with renal impairment see PRECAUTIONS section.
Chemotherapy courses are repeated at 3- to 4-week intervals after adequate recovery from any toxicity.
The dosage should be modified to take into account the myelosuppressive effects of other drugs in the combination or the effects of prior x-ray therapy or chemotherapy which may have compromised bone marrow reserve.
As with other potentially toxic compounds, caution should be exercised in handling and preparing the solution of TOPOSAR. Skin reactions associated with accidental exposure to etoposide may occur. The use of gloves is recommended. If TOPOSAR solution contacts the skin or mucosa, immediately and thoroughly wash the skin with soap and water and flush the mucosa with water.
Preparation for Intravenous Administration
TOPOSAR must be diluted prior to use with either 5% Dextrose Injection, USP, or 0.9% Sodium Chloride Injection, USP, to give a final concentration of 0.2 to 0.4 mg/mL. If solutions are prepared at concentrations above 0.4 mg/mL, precipitation may occur. Hypotension following rapid intravenous administration has been reported, hence, it is recommended that the TOPOSAR solution be administered over a 30- to 60-minute period. A longer duration of administration may be used if the volume of fluid to be infused is a concern. TOPOSAR should not be given by rapid intravenous injection.
Parenteral drug products should be inspected visually for particulate matter and discoloration (see DESCRIPTION section) prior to administration whenever solution and container permit.
Unopened vials of TOPOSAR are stable until the date indicated on the package at room temperature (25°C). Vials diluted as recommended to a concentration of 0.2 to 0.4 mg/mL are stable for 96 and 24 hours, respectively, at room temperature (25°C) under normal room fluorescent light in both glass and plastic containers.
Procedures for proper handling and disposal of anticancer drugs should be considered. Several guidelines on this subject have been published.1-8 There is no general agreement that all of the procedures recommended in the guidelines are necessary or appropriate.